This is the twin pack version of the RLL7513CP 10x O Gauge 3 Panel Concrete Fencing Pack that will give you a length of fencing around 1.1m.
The panels have engraved lines horizontally on both sides to respresent singular concrete panels and 3 make up a block.
Simply use a sharp modelling knife/zippy blade or equivalent to cut the panels from the template. Do the same for the concrete posts and then slide the panels inside the posts and glue along the vertical lines using a very small amount of PVA glue using the dabbing method. Immediately wipe away any excess glue with a small brush. Hold each post in place with you finger/thumb to bond, then release and do the remaining ones. When it comes to joing the two panels together the centre post should be glued half one one side and half on the other to give that perfect join. Add some additional glue to the sides of the ends of each concrete panel. Allow to fully dry and paint and weather accordingly.
If you want to spice things up, you can simply cut away some panels to give that dilapidated look. Care should be taken when cutting these as not to damage them.
NB: Image currently shows the 3 panel part painted version of this kit